api, login, auth

1 files changed, 511 insertions, 0 deletions

diff --git a/node_modules/kareem/index.js b/node_modules/kareem/index.js
new file mode 100644
index 0000000..31ccb41
--- /dev/null
+++ b/node_modules/kareem/index.js
@@ -0,0 +1,511 @@
+'use strict';
+
+function Kareem() {
+  this._pres = new Map();
+  this._posts = new Map();
+}
+
+Kareem.prototype.execPre = function(name, context, args, callback) {
+  if (arguments.length === 3) {
+    callback = args;
+    args = [];
+  }
+  var pres = get(this._pres, name, []);
+  var numPres = pres.length;
+  var numAsyncPres = pres.numAsync || 0;
+  var currentPre = 0;
+  var asyncPresLeft = numAsyncPres;
+  var done = false;
+  var $args = args;
+
+  if (!numPres) {
+    return process.nextTick(function() {
+      callback(null);
+    });
+  }
+
+  var next = function() {
+    if (currentPre >= numPres) {
+      return;
+    }
+    var pre = pres[currentPre];
+
+    if (pre.isAsync) {
+      var args = [
+        decorateNextFn(_next),
+        decorateNextFn(function(error) {
+          if (error) {
+            if (done) {
+              return;
+            }
+            done = true;
+            return callback(error);
+          }
+          if (--asyncPresLeft === 0 && currentPre >= numPres) {
+            return callback(null);
+          }
+        })
+      ];
+
+      callMiddlewareFunction(pre.fn, context, args, args[0]);
+    } else if (pre.fn.length > 0) {
+      var args = [decorateNextFn(_next)];
+      var _args = arguments.length >= 2 ? arguments : [null].concat($args);
+      for (var i = 1; i < _args.length; ++i) {
+        args.push(_args[i]);
+      }
+
+      callMiddlewareFunction(pre.fn, context, args, args[0]);
+    } else {
+      let error = null;
+      let maybePromise = null;
+      try {
+        maybePromise = pre.fn.call(context);
+      } catch (err) {
+        error = err;
+      }
+
+      if (isPromise(maybePromise)) {
+        maybePromise.then(() => _next(), err => _next(err));
+      } else {
+        if (++currentPre >= numPres) {
+          if (asyncPresLeft > 0) {
+            // Leave parallel hooks to run
+            return;
+          } else {
+            return process.nextTick(function() {
+              callback(error);
+            });
+          }
+        }
+        next(error);
+      }
+    }
+  };
+
+  next.apply(null, [null].concat(args));
+
+  function _next(error) {
+    if (error) {
+      if (done) {
+        return;
+      }
+      done = true;
+      return callback(error);
+    }
+
+    if (++currentPre >= numPres) {
+      if (asyncPresLeft > 0) {
+        // Leave parallel hooks to run
+        return;
+      } else {
+        return callback(null);
+      }
+    }
+
+    next.apply(context, arguments);
+  }
+};
+
+Kareem.prototype.execPreSync = function(name, context, args) {
+  var pres = get(this._pres, name, []);
+  var numPres = pres.length;
+
+  for (var i = 0; i < numPres; ++i) {
+    pres[i].fn.apply(context, args || []);
+  }
+};
+
+Kareem.prototype.execPost = function(name, context, args, options, callback) {
+  if (arguments.length < 5) {
+    callback = options;
+    options = null;
+  }
+  var posts = get(this._posts, name, []);
+  var numPosts = posts.length;
+  var currentPost = 0;
+
+  var firstError = null;
+  if (options && options.error) {
+    firstError = options.error;
+  }
+
+  if (!numPosts) {
+    return process.nextTick(function() {
+      callback.apply(null, [firstError].concat(args));
+    });
+  }
+
+  var next = function() {
+    var post = posts[currentPost].fn;
+    var numArgs = 0;
+    var argLength = args.length;
+    var newArgs = [];
+    for (var i = 0; i < argLength; ++i) {
+      numArgs += args[i] && args[i]._kareemIgnore ? 0 : 1;
+      if (!args[i] || !args[i]._kareemIgnore) {
+        newArgs.push(args[i]);
+      }
+    }
+
+    if (firstError) {
+      if (post.length === numArgs + 2) {
+        var _cb = decorateNextFn(function(error) {
+          if (error) {
+            firstError = error;
+          }
+          if (++currentPost >= numPosts) {
+            return callback.call(null, firstError);
+          }
+          next();
+        });
+
+        callMiddlewareFunction(post, context,
+          [firstError].concat(newArgs).concat([_cb]), _cb);
+      } else {
+        if (++currentPost >= numPosts) {
+          return callback.call(null, firstError);
+        }
+        next();
+      }
+    } else {
+      const _cb = decorateNextFn(function(error) {
+        if (error) {
+          firstError = error;
+          return next();
+        }
+
+        if (++currentPost >= numPosts) {
+          return callback.apply(null, [null].concat(args));
+        }
+
+        next();
+      });
+
+      if (post.length === numArgs + 2) {
+        // Skip error handlers if no error
+        if (++currentPost >= numPosts) {
+          return callback.apply(null, [null].concat(args));
+        }
+        return next();
+      }
+      if (post.length === numArgs + 1) {
+        callMiddlewareFunction(post, context, newArgs.concat([_cb]), _cb);
+      } else {
+        let error;
+        let maybePromise;
+        try {
+          maybePromise = post.apply(context, newArgs);
+        } catch (err) {
+          error = err;
+          firstError = err;
+        }
+
+        if (isPromise(maybePromise)) {
+          return maybePromise.then(() => _cb(), err => _cb(err));
+        }
+
+        if (++currentPost >= numPosts) {
+          return callback.apply(null, [error].concat(args));
+        }
+
+        next(error);
+      }
+    }
+  };
+
+  next();
+};
+
+Kareem.prototype.execPostSync = function(name, context, args) {
+  const posts = get(this._posts, name, []);
+  const numPosts = posts.length;
+
+  for (let i = 0; i < numPosts; ++i) {
+    posts[i].fn.apply(context, args || []);
+  }
+};
+
+Kareem.prototype.createWrapperSync = function(name, fn) {
+  var kareem = this;
+  return function syncWrapper() {
+    kareem.execPreSync(name, this, arguments);
+
+    var toReturn = fn.apply(this, arguments);
+
+    kareem.execPostSync(name, this, [toReturn]);
+
+    return toReturn;
+  };
+}
+
+function _handleWrapError(instance, error, name, context, args, options, callback) {
+  if (options.useErrorHandlers) {
+    var _options = { error: error };
+    return instance.execPost(name, context, args, _options, function(error) {
+      return typeof callback === 'function' && callback(error);
+    });
+  } else {
+    return typeof callback === 'function' ?
+      callback(error) :
+      undefined;
+  }
+}
+
+Kareem.prototype.wrap = function(name, fn, context, args, options) {
+  const lastArg = (args.length > 0 ? args[args.length - 1] : null);
+  const argsWithoutCb = typeof lastArg === 'function' ?
+    args.slice(0, args.length - 1) :
+    args;
+  const _this = this;
+
+  options = options || {};
+  const checkForPromise = options.checkForPromise;
+
+  this.execPre(name, context, args, function(error) {
+    if (error) {
+      const numCallbackParams = options.numCallbackParams || 0;
+      const errorArgs = options.contextParameter ? [context] : [];
+      for (var i = errorArgs.length; i < numCallbackParams; ++i) {
+        errorArgs.push(null);
+      }
+      return _handleWrapError(_this, error, name, context, errorArgs,
+        options, lastArg);
+    }
+
+    const end = (typeof lastArg === 'function' ? args.length - 1 : args.length);
+    const numParameters = fn.length;
+    const ret = fn.apply(context, args.slice(0, end).concat(_cb));
+
+    if (checkForPromise) {
+      if (ret != null && typeof ret.then === 'function') {
+        // Thenable, use it
+        return ret.then(
+          res => _cb(null, res),
+          err => _cb(err)
+        );
+      }
+
+      // If `fn()` doesn't have a callback argument and doesn't return a
+      // promise, assume it is sync
+      if (numParameters < end + 1) {
+        return _cb(null, ret);
+      }
+    }
+
+    function _cb() {
+      const args = arguments;
+      const argsWithoutError = Array.prototype.slice.call(arguments, 1);
+      if (options.nullResultByDefault && argsWithoutError.length === 0) {
+        argsWithoutError.push(null);
+      }
+      if (arguments[0]) {
+        // Assume error
+        return _handleWrapError(_this, arguments[0], name, context,
+          argsWithoutError, options, lastArg);
+      } else {
+        _this.execPost(name, context, argsWithoutError, function() {
+          if (arguments[0]) {
+            return typeof lastArg === 'function' ?
+              lastArg(arguments[0]) :
+              undefined;
+          }
+
+          return typeof lastArg === 'function' ?
+            lastArg.apply(context, arguments) :
+            undefined;
+        });
+      }
+    }
+  });
+};
+
+Kareem.prototype.filter = function(fn) {
+  const clone = this.clone();
+
+  const pres = Array.from(clone._pres.keys());
+  for (const name of pres) {
+    const hooks = this._pres.get(name).
+      map(h => Object.assign({}, h, { name: name })).
+      filter(fn);
+
+    if (hooks.length === 0) {
+      clone._pres.delete(name);
+      continue;
+    }
+
+    hooks.numAsync = hooks.filter(h => h.isAsync).length;
+
+    clone._pres.set(name, hooks);
+  }
+
+  const posts = Array.from(clone._posts.keys());
+  for (const name of posts) {
+    const hooks = this._posts.get(name).
+      map(h => Object.assign({}, h, { name: name })).
+      filter(fn);
+
+    if (hooks.length === 0) {
+      clone._posts.delete(name);
+      continue;
+    }
+
+    clone._posts.set(name, hooks);
+  }
+
+  return clone;
+};
+
+Kareem.prototype.hasHooks = function(name) {
+  return this._pres.has(name) || this._posts.has(name);
+};
+
+Kareem.prototype.createWrapper = function(name, fn, context, options) {
+  var _this = this;
+  if (!this.hasHooks(name)) {
+    // Fast path: if there's no hooks for this function, just return the
+    // function wrapped in a nextTick()
+    return function() {
+      process.nextTick(() => fn.apply(this, arguments));
+    };
+  }
+  return function() {
+    var _context = context || this;
+    var args = Array.prototype.slice.call(arguments);
+    _this.wrap(name, fn, _context, args, options);
+  };
+};
+
+Kareem.prototype.pre = function(name, isAsync, fn, error, unshift) {
+  let options = {};
+  if (typeof isAsync === 'object' && isAsync != null) {
+    options = isAsync;
+    isAsync = options.isAsync;
+  } else if (typeof arguments[1] !== 'boolean') {
+    error = fn;
+    fn = isAsync;
+    isAsync = false;
+  }
+
+  const pres = get(this._pres, name, []);
+  this._pres.set(name, pres);
+
+  if (isAsync) {
+    pres.numAsync = pres.numAsync || 0;
+    ++pres.numAsync;
+  }
+
+  if (typeof fn !== 'function') {
+    throw new Error('pre() requires a function, got "' + typeof fn + '"');
+  }
+
+  if (unshift) {
+    pres.unshift(Object.assign({}, options, { fn: fn, isAsync: isAsync }));
+  } else {
+    pres.push(Object.assign({}, options, { fn: fn, isAsync: isAsync }));
+  }
+
+  return this;
+};
+
+Kareem.prototype.post = function(name, options, fn, unshift) {
+  const hooks = get(this._posts, name, []);
+
+  if (typeof options === 'function') {
+    unshift = !!fn;
+    fn = options;
+    options = {};
+  }
+
+  if (typeof fn !== 'function') {
+    throw new Error('post() requires a function, got "' + typeof fn + '"');
+  }
+
+  if (unshift) {
+    hooks.unshift(Object.assign({}, options, { fn: fn }));
+  } else {
+    hooks.push(Object.assign({}, options, { fn: fn }));
+  }
+  this._posts.set(name, hooks);
+  return this;
+};
+
+Kareem.prototype.clone = function() {
+  const n = new Kareem();
+
+  for (let key of this._pres.keys()) {
+    const clone = this._pres.get(key).slice();
+    clone.numAsync = this._pres.get(key).numAsync;
+    n._pres.set(key, clone);
+  }
+  for (let key of this._posts.keys()) {
+    n._posts.set(key, this._posts.get(key).slice());
+  }
+
+  return n;
+};
+
+Kareem.prototype.merge = function(other, clone) {
+  clone = arguments.length === 1 ? true : clone;
+  var ret = clone ? this.clone() : this;
+
+  for (let key of other._pres.keys()) {
+    const sourcePres = get(ret._pres, key, []);
+    const deduplicated = other._pres.get(key).
+      // Deduplicate based on `fn`
+      filter(p => sourcePres.map(_p => _p.fn).indexOf(p.fn) === -1);
+    const combined = sourcePres.concat(deduplicated);
+    combined.numAsync = sourcePres.numAsync || 0;
+    combined.numAsync += deduplicated.filter(p => p.isAsync).length;
+    ret._pres.set(key, combined);
+  }
+  for (let key of other._posts.keys()) {
+    const sourcePosts = get(ret._posts, key, []);
+    const deduplicated = other._posts.get(key).
+      filter(p => sourcePosts.indexOf(p) === -1);
+    ret._posts.set(key, sourcePosts.concat(deduplicated));
+  }
+
+  return ret;
+};
+
+function get(map, key, def) {
+  if (map.has(key)) {
+    return map.get(key);
+  }
+  return def;
+}
+
+function callMiddlewareFunction(fn, context, args, next) {
+  let maybePromise;
+  try {
+    maybePromise = fn.apply(context, args);
+  } catch (error) {
+    return next(error);
+  }
+
+  if (isPromise(maybePromise)) {
+    maybePromise.then(() => next(), err => next(err));
+  }
+}
+
+function isPromise(v) {
+  return v != null && typeof v.then === 'function';
+}
+
+function decorateNextFn(fn) {
+  var called = false;
+  var _this = this;
+  return function() {
+    // Ensure this function can only be called once
+    if (called) {
+      return;
+    }
+    called = true;
+    // Make sure to clear the stack so try/catch doesn't catch errors
+    // in subsequent middleware
+    return process.nextTick(() => fn.apply(_this, arguments));
+  };
+}
+
+module.exports = Kareem;